Q: What is Crazy Comparisons?
A free size-estimation quiz with a slot machine. Spin to reveal fun comparison questions, then pick the closest answer from four choices.
Q: Is it free?
Yes, completely free. No account needed, no ads, no paywalls.
Q: What skills does it teach?
Estimation skills, number sense, and Fermi reasoning - the ability to make educated guesses about quantities you've never measured.